SMOKING EVERYWHERE E-CIGARETTE $390 fake cigaret prim, California

I went to the outlet south primm near nevada and I was walking by, I notice a boutique and explaining how the electronic smoke works and a sales lady came to me and told me she will sell it to me and 100% that I can return it w/ a full refund no question ask so I brought 2 total of $390, I used it for 20 mins and about 2 hours just going around the outlet store, I decided to return it but the sales lady told me no return but exchange only so I was RIPOFF, I know I will get in trouble if I punch her so I left. I called their website www.smokingeverywhere.com and they told me they are not affiliated with them.